Loom for the weaving of tufted fabrics.



PATENTED JUNE 16, 1908.

T. COOPER. LOOM FOR THE WEAVING 0F TUFTED FABRICS.

' APPLICATION FILED FEB. 19, 1907.

'7 SHEETS-SHEET 1- Inventor ZZ'O77ZQJ 6 0 0 246) firs mamas rs zns cm, WJSHINGTON, By C.

No. 891,147. PATENTED JUNE 16, 1908.

1 T. COOPER. LOOM FOR THE WEAVING OF TUFTED FABRICS.-

APPLIGATION FILED FEB- 19, 1907.

'1 SHEETS-SHEET '2.

Witnesses Invm60n- 1n: NORRIS Psrsns co, wasuma'rom-o. c.

7 PATENTED JUNE 16, 1908. I T. COOPER. LOOM FOR THE WBAVING 0F TUPTED FABRICS.

APPLICATION FILED FEB. 19. 1907.

, lrwmto fizozrfag Wvbnesses No. 891347. PATENTED JUNE 16, 1908.

T. COOPER. I LOOM FOR THE WEAVING 0F TUFTBD FABRICS.

APPLICATION FILED FEB-19,1907.

'1 sums-sum 4.

rut Nomus PtTnS cm, wumnanm, D, s,

- No. 891,147, PATENTED JUNE 16, 1908.

T. GO0PBR. LOOM FOR THE WEAVING 0F TUPTED FABRICS.

APPLICATION FILED FEB. 19, 1907.

7 SHEETS-SHEET 6.

co 0'' 90 I FL 00 e f (D i Q l d y 0 Witnesses il 1m: "dams PEIERS co., wAsuluc-mn, o c

PATENTED JUNE 16, 1908.

T. COOPER. LOOM FOR THE WEAVING 0F TUFTBD FABRICS.

APPLIOATIQN FILED FEB- 19, 1907.

'7 SHEETS-SHEET 6.

Inventor,

' TH E NORRIS PETBR$ co., WASHINGTON, n.

PATENTED JUNE 16, 1908 T. COOPER. LOOM FOR THE WEAVING 0F TUFTED FABRICS.

APPLICATION FILED FEB-19, 1907.

'7 SHEETS-SHEET I.

' Inventor,- floiizdd' Q0 THOMAS COOPER, OF KIDDERMINSTER, ENGLAND.

LOOM FOR THE WEAVING OF TUFTED FABRICS.

Application filed February 19, 1907.

To all whom it may concern:

Be it known that I, THOMAS COOPER, a subject of the King of Great Britain, residing at Farfield, Kidderminster, England, have invented certain new and useful Improvements in Looms for the Weaving of Tufted Fabrics, of which the following is a specification.

My invention relates to looms for weaving tufted or pile fabrics, such for example as Axminster carpets and rugs, of the kind described and represented in the specifications of British Patents No. 2410 of 1891 Nos. 980 and 981 of 1893 and No. 24519-of 1894, the tuft yarns being introduced into the fabric by tube frames, each tube frame carrying a bobbin on which the tuft yarns are wound, or by needles, and my invention consists of the improvements hereinafter described in the said looms whereby the waste produced in the cutting and trimming of the tuft yarns is very materially reduced and the working of the loom is rendered more efficient.

In order that my invention may be the better understood I remark that in the weaving of AXminster carpets and rugs in looms of the kind referred to, as ordinarily practiced, the shed is preserved open during the introduction of the tuft yarns to form the pattern and pile of the fabric and during the introduction of the shot of weft and the bringing of the ends of the tuft yarns, doubled, on the shot of weft, by the reed and tuft arrester or nipper up to the fell of the fabric; in consequence of the shed being preserved open during the several operations described the tuft arrester or nipper, which when advanced toward the reed is supported by the upper plane of the warps effects the gripping of the tuft yarns at or near their extreme ends, consequently the whole of the tuft yarns between the said ends and the bobbins is under tension when the cutting operation takes place. In consequence of the varying elasticity of the yarns an unevenness in the ends of the tufts is frequently produced, and in the cutting and trimming operation a waste results which by my invention is reduced to a minimum.

I will describe my invention in connection with a loom in which the tuft yarns are carried by bobbins and tube frames of the ordinary kind so much only of the loom 'being represented in the accompanying drawings I Specification of Letters Patent.

Patented June 16, 1908.

Serial No. 358,331.

of my invention.

Figure 1 of the accompanying drawings as is necessary to the proper understanding represents in side elevation the main portion a vertical section on the dotted line at, :20 Fig.

2, and Figs. 4, 5, 6 and 7 are similar views illustrating with the said Fig. 3, the essential features of my invention. Figs. 8 to 14 both inclusive are views of portions of the loom hereinafter particularly described.

The same letters of reference indicate the same parts in the several figures of the drawmgs.

In carrying my invention into effect I provide for a shorter projection of the tuft yarns y from the quills or tubes d of the tube frames d than is usual, and I effect the closing of the shed, or the lowering of the upper lane of thewarps Z, 1 immediately after the introduction of the shot of weft m on which the ends of the tuft yarns are to be doubled. By this means the tuft arrester or nipper, marked n, when moved up to the reed p for doubling the tuft yarns on the shot of weft m and gripping the tuft yarns, effects the said gripping in a line below the upper edge of the reed p and the end portions of the tuft yarns projecting or'standing above the tuft arrester or nipper are not submitted to tension in the subsequent simultaneous movement of the reed p and tuft arrester or nipper n for carrying the doubled ends of the tuft yarns and shot of weft up to the fell of the fabric.

The tuft yarns y are carried by bobbins a, a one only of which is represented the series of which bobbins are attached to and suspended from the intermittently driven endless chains b, b of the loom by the spring arms 0 c of the metal fittings c, c on the ends of the tube frames or bars d as is usual.

It will be understood by those conversant with the looms hereinbefore referred to that each time the intermittently driven chains 1) come to rest one of the series of bobbins a, a is brought into such a position that it can be temporarily detached by the transferrer of the loom for the purpose of introducing the tuft yarns into the fabric.

During the greater part of the time that the bobbins a, a are one by one temporarily detached from the chains I), ?1' by the transferrers of the'loom it is essential that the said bobbins a, a shall be held against movement on their axes. To prevent such movement a" pair of endwise grippers have been heretofore.

employed the pressure of which on the opposite ends of the bobbins has tended to pre' vent their partial rotation but to insure greater efficiency and prevent thepossibi'lity of any angular movement of the same I have devised the special construction of clutch hereinafter described whereby a;peripheral grip on the flanges a? of the bobbins-a, a is obtained instead of an endwise grip.

To obtain the peripheral-grip referred to the clutch employed for each flange e of the bobbin'a, a consists essentially ofa pair of pivoted crescent shaped gripping j aws marked respectively h, k v and best seen in Figs. 3 to 9 both inclusive; Fig. 8 represents in front elevationone of the clutches detached nearly fully closed and'Fig. g'represents apla-n'of the same open. 7

The crescent shaped -j aw h ofeach clutch is'mounted on a'pin e attache'd'to the side arm or bracketre of the transferring mechanism of the loom which mechanism is operated in the ordinary 'way. The other crescent shaped jaw 7L is pivoted to the end of a jointed arm h best seen in Figs. 8 and 9 which receives an angular motion bythe action on its edges of the arms or prongsf f of a forkedbar f inte ral with arocking spindle f which is rocke in a-bearing in thearmor bracket e as is hereinafter described.

Both crescent sha ed'jaws '72 h are capable of a limited angu ar motionon their'pins or pivots and each is-under-the action of a spring as will be best understood by reference to Fi s. 10 and 11 whichspring's tend to preserve t' e upper ends of the jaws attheir maximum distance apart as is illustrated in Fig. 3. Figs. 1.0 and 11 are sections'taken on the dotted lines 1010 and 11-11 respectively of'Fig. 9.

When the bobbin clutches h, k are liftedby the transferring mechanism of the loom into the position represented inFig 4;for the urpvose of temporarily detachin one of the ob ins from the chains 6, b the aws h, k ofthe clutches are closed tightly 'onthe peripheries of the flanges a a of the bobbin e and forked barf is turned in the direction proper for causin the arms or prongs f f 2 to oper-- ate the jointed arm 7L and make the-jaw h? approach the jaw h by the turning'of the-arm iframes, bobbins mounted in the frames for gsupplying tufted yarns, means for intermitor crank 71 pinned or cottered to the-rear end of the spindle the turning of the said armthe:cam'shaft'of'the loom the said cam acting through the levers and links or connecting rods k, W, 7c, k k and it the roller if being keptto its bearing against the cam 7c by the coiled springs is.

When the jaw h is made toapproach the 'aw h'the clutches are brought to their bearing on the peripheries of the flanges a of the bobbin azthe said jaws turning against the action of their springs until the peripheral grip is uniform theparts taking the positions represented-in Fig. 4. The transferrer then the open shed ofthewarpsl, l as is'illustrate'd in Fig. 5. The shot of weft m having been passed-through the open shed (seeFig. 5) the said shedis closed asisillustrated in-Fig. 6 andthe tuft arrester or nipper n which-is moved; backward along the warps is permitted to-pinchor grip the doubledends of the tuft-yarns against the reedp in a linebelow thetop edge of the said reed. The closing ofthe shed at this early period in the mo tions of the parts constitutes one of the essential features ofmy invention and is effected by a modification in shape ofthe three cams 1',-s, t for controlling the warps Z the said modified camsbeing shown detached in Figs. 12, 13 and 14*respectively. Instead of-clos ing the she'd-in the waydescribed and illustrated the same or nearly the same effect may be obtained by, lowering the upper plane of warps. The doubled ends of the tuft yarns are then carried by the simultaneous forward movementof the reed p and tuft arrester n uptothe fell of the fabric as is usual the grip of the bobbin clutches on the flanges a ofthe bobbin ab'eing slightly relaxed as is illustrated in Fig. 7 so as to permit the tuft yarnsto be drawn off the bobbin-to the extent necessary to provide-for the next feed-of tuft yarns. When the blades-u, v are brought together for the cutting and trimming of the tuft yarns the bobbin is 'again firmly gripped and it is'not subse- 1 quentlyreleased until ithas been lifted up tochains 1), b by-the operations ofthe transerrer.

ingtuft yarns into the shed, a transferrlng .means for moving the bobbins from one point to another, said transferring means containin clutch mechanism for peripher-' ally grippmg the heads orflanges of-the bob- 2. A loom comprising a series of quill.

tently moving the frames, transferring mechanism for receiving the frames and having grip er jaws for peripheral engagement with the leads of the bobbins, and cam mechanism for actuating the transferring mechanism to shift the frames into working position and also the jaws.

3. In a loom having tube frames movable from one position to another, bobbins carried by the frames, transferring mechanism for bringing the frames to a working position, arms pivotally connected to the said mechanism, tensioned aws carried by the arms for peripheral engagement with the heads of the bobbins, and cam actuated mechanism for operating the arms to close the jaws on the periphery of the bobbin heads.

4. In a loom, transferring mechanism, means for supporting a bobbin carrying the tufted yarns and adapted to be received by the transferring mechanism and shifted thereby to operative working position, pivotal arms carried by the transferring mechanism, crescent shaped gripper jaws pivotally associated with the arms and the transferring mechanism, res ectively, springs acting on said aws to all ow slight yielding of the latter, movable elements operative upon the arms to bring the aws into peripheral contact with the heads of the bobbin, and cam actuated mechanism associated with the movable elements for operating the arms to close the jaws on the periphery of the bobbin heads.

5. In a loom, transferring mechanism, means for supporting a bobbin carrying the tufted yarns and adapted to be received by the transferring mechanism and shifted thereby to operative working position, pivotal arms carried by the transferring mechanism, crescent shaped gripper aws pivotally associated with the arms and the transferring mechanism, respectively, springs acting on said jaws to allow slight yielding of the latter, movable elements operative upon the arms to bring the jaws into peripheral contact with the heads of the bobbins, cam actuated mechanism associated with the movable elements for operating the arms to close the aws on the periphery of the bobbin heads, and mechanism for actuating the transferring mechanism.

6. In a loom, transferring mechanism, means for supporting a bobbin carrying the tufted yarns supply and adapted to be received by the transferring mechanism and shifted thereby to operative working position, pivotal arms carried by the transferring mechanism, crescent shaped gripper aws pivotally associated with the arms and the transferring mechanism, respectively, s rings acting on said jaws to allow slight yielc ing of the latter, movable elements operative upon the arms to bring the jaws in peripheral contact with the heads of the bobbin, means for forming the shed, a movable reed, nippers for doubling and gripping the tufted yarns other to cause the doubling of the tufted yarns and the gripping of the same by the nippers, cam actuated mechanism associated with the movable elements for operating the arms to close the jaws on the heads of the bobbin, and cam mechanism for actuating the transferring mechanism.

7. In a loom having an intermittently driven chain and transferring mechanism, tube frames detachably connected with the chain, tufted yarn supporting bobbins mounted in the tube frames, tension controlled closing jaws pivotally connected to the transferring mechanism for clutching the heads of the bobbins, and cam operated mechanism for actuating the transferring mechanism and also said jaws to grip the heads of the bobbins.

8. In a loom, a bobbin for supporting tufted yarn, transferring mechanism for shifting the bobbin to operative position, oppositely disposed gripper jaws associated with the transferring mechanism and adapted for peripheral engagement with the bobbin, means for forming a shed, a reed, nipper mechanism for doubling and gripping the tufted yarn against the reed below the uppermost edge thereof, and cam actuated mechanism for operating the jaws to close the same against the periphery of the heads of the bobbin and also for moving the nippers in working relation to the reed.

9. In a loom, a bobbin for supporting tufted yarn, transferring mechanism for shifting the bobbin to operative position, oppositely disposed gripper jaws associated with the transferring mechanism and adapted for peripheral engagement with the bobbin, means for forming a shed, a reed, nipper mechanism for doubling and gripping the tufted yarn against the reed below the uppermost edge thereof, cam actuated mechanism for operating the jaws to close the same against the periphery of the heads of the bobbin and also for movingthe nippers in working relation to the reed, and mechanism for cutting the tufted yarn subsequent to the doubling thereof.

10. A loom having a bobbin for supplying tuft yarns into the shed formed by the warps, a transferring device for moving the bobbin into and out of o erative position relatively to the shed, and c utch mechanism carried by and movable with the transferring device for peripherally engaging a head or flange of the bobbin. I

11. A transferring mechanism for looms provided with front crescent-shaped gripping jaws carried by pivoted arms, the said front jaws acting in conjunction with similar rear gripping jaws arranged on pins projecting from the said arms or brackets of the transferrer to peripherally grip the heads or flanges ofvtheobbins, the pivoted arms of the front gripping j aws when actuated press- 1 ing the flanges or heads of the bobbins against a the a rear gripping j aws and 5 thereby insuringvgripping of the flanges of each bobbin in the'isame position with respectito the tube frame depending therefrom.

12. A transferring mechanism for looms embodying a tube frame, aapair of relatively m'ovab'legripping devices-movable with the transferrer: and the tube' frame and I adapted to engage the peripheries of the bobbin flanges and position the same relatively to the' tube" frame, the relatively stationary gripping device being in' lixed relation to the tube'frame and serving to index the bobbin withlrespectithereto;

18. 'A' loom c0mprising the combination with mechanism for doubling the ends of tuft yarns as the latter are inserted into the open she'd; and mechanism for moving the weft forward and backward through the open shed and=through the loops of the double ends of tuft yarns, of mechanism for con- 14. A loom comprisin the combination with mechanism fordoub ingthe ends ofthe tuft yarnsas the latter are carried down and inserted into' the open shed and mechanism for'moving the weft forward and backward through the open shed and through the loops of the tuft yarns therein, of mechanism for controlling the war s to immediately close the shed upon the inserted weft anda ni per-to grip-the tuft yarns against the vreed below the top edge thereof.

In testimony whereof I have signedmy name to this specification in the presence of two subscribing witnesses.

THOMAS COOPER.

Witnesses:

GEORGE JAMES HUMPI-IERsoN,

ARTHUR GILL.

e tuft yarns against the reed below the top edge thereof. 

